Very glad to read about all your kitties. You are truly at "cat person" to have what other prople would call unadoptable kitties. But we who really know cats, know that each of their quirks is what makes them who they are.

Your Taranis sounds exactly like my foster cat Lizzie (coincidence, huh?)

Is you home physically divided between the upstairs and the downstairs? or do the cats just tend to stay on "their" own floor?

My own home is divided with a door to keep the foster cats on the 3rd floor and my own guys on the 1st and 2nd floors.